CN219300912U - Heat pump air conditioning unit - Google Patents
Heat pump air conditioning unit Download PDFInfo
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- CN219300912U CN219300912U CN202222723375.3U CN202222723375U CN219300912U CN 219300912 U CN219300912 U CN 219300912U CN 202222723375 U CN202222723375 U CN 202222723375U CN 219300912 U CN219300912 U CN 219300912U
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- liquid separator
- circulation loop
- air conditioning
- heat pump
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides a heat pump air conditioning unit. The heat pump air conditioning unit comprises a main circulation loop, wherein the main circulation loop is provided with a split circulation loop, a first throttling device is arranged on the split circulation loop, a gas-liquid separator is connected to the first throttling device, the gas-liquid separator is communicated with the main circulation loop, the low-temperature heating capacity of the air conditioner in a low-temperature environment is improved, and the daily life demands of people are met. In the novel heating mode, the gas-liquid two-phase refrigerant part after coming out of the indoor heat exchanger flows back to the gas-liquid separator for heat exchange, so that the suction temperature and suction pressure in the gas-liquid separator are improved, the refrigerant circulation quantity of the unit is improved, and the heating quantity is improved; meanwhile, the oil temperature superheat degree and the air suction superheat degree of the unit in a low-temperature environment can be guaranteed, and safe and reliable operation of the unit is guaranteed.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to a heat pump air conditioning unit.
Background
Along with the improvement of living standard and under the large background of national carbon peak and carbon neutralization, the coal changes to electricity, so that the heat pump air conditioner is more widely applied to the life of people. The heat pump air conditioner unit is a circulation system composed of a compressor, an outdoor unit, an indoor unit and the like. The refrigerant circulates in the heat pump unit under the action of the compressor, so that the function of refrigerating in summer or heating in winter can be realized, and the heat pump air conditioner unit is widely applied to various places such as houses, commercial buildings and the like, so that the comfort of the environment temperature is improved.
Because the heating capacity of the air conditioning system is attenuated in the outdoor low-temperature environment to cause insufficient heating capacity of the unit, the unit needs to be supplemented by additional electric heating or other heating equipment, how to improve the heating capacity of the heat pump air conditioner in the low-temperature environment and ensure the reliable operation of the unit in the low-temperature environment is a direction which is always explored by people.
Novel content
In order to solve the problem, the utility model provides a heat pump air conditioning unit can promote the low temperature heating capacity of air conditioner under low temperature environment, satisfies people's daily life demand.
A heat pump air conditioning unit, including main circulation circuit, main circulation circuit is provided with reposition of redundant personnel circulation circuit, install a throttling arrangement on the reposition of redundant personnel circulation circuit, be connected with gas-liquid separator on the first throttling arrangement, gas-liquid separator with main circulation circuit is linked together.
As a further optimization of the novel device, the main circulation loop is provided with the compressor, the compressor is connected with the four-way valve, one end of the four-way valve is connected with the indoor heat exchanger, and the indoor heat exchanger is communicated with the heat exchange tube air inlet of the gas-liquid separator.
As a further optimization of the novel structure, an outdoor heat exchanger is connected to the air outlet of the heat exchange tube of the gas-liquid separator, and the air outlet of the outdoor heat exchanger is communicated with the air inlet of the heat exchange tube of the gas-liquid separator.
As a further optimization of the novel, a second throttling device is arranged between the indoor heat exchanger and the gas-liquid separator.
As a further optimization of the novel gas-liquid separator, a third throttling device is arranged between the gas outlet of the heat exchange tube of the gas-liquid separator and the outdoor heat exchanger.
As a further refinement of the present utility model, the first throttle device or the second throttle device or the third throttle device includes one or more of an electronic expansion valve and a capillary tube.
As a further optimization of the present utility model, the electronic expansion valve further comprises a controller, wherein the controller is electrically connected with the electronic expansion valve.
As a further optimization of the present utility model, the device further comprises an environmental temperature sensing bulb for detecting the environmental temperature, and the environmental temperature sensing bulb is electrically connected with the controller.
Compared with the prior art, the beneficial effects of the utility model are that:
a heat pump air conditioning unit, including main circulation loop, main circulation loop is provided with reposition of redundant personnel circulation loop, install a throttling arrangement on the reposition of redundant personnel circulation loop, be connected with gas-liquid separator on the first throttling arrangement, gas-liquid separator with main circulation loop is linked together, promotes the low temperature heating capacity of air conditioner under low temperature environment, satisfies people's daily life demand.
In the heating mode of the novel heat pump air conditioning unit, the gas-liquid two-phase refrigerant part after coming out of the indoor heat exchanger flows back to the gas-liquid separator for heat exchange, so that the suction temperature and suction pressure in the gas-liquid separator are improved, the refrigerant circulation quantity of the unit is improved, and the heating quantity is improved; meanwhile, the oil temperature superheat degree and the air suction superheat degree of the unit in a low-temperature environment can be guaranteed, and safe and reliable operation of the unit is guaranteed.
Drawings
The present utility model will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the heat pump air conditioning unit.
In the above figures, 1, a main circulation circuit; 2. a split-flow circulation loop; 3. a first throttle device; 4. a gas-liquid separator; 5. a compressor; 6. a four-way valve; 7. an indoor heat exchanger; 8. an outdoor heat exchanger; 9. a second throttle device; 10. a third throttling device; 11. a controller; 12. an environmental temperature sensing bag.
In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a heat pump air conditioning unit, including main circulation circuit 1, main circulation circuit 1 is provided with reposition of redundant personnel circulation circuit 2, install first throttling arrangement 3 on the reposition of redundant personnel circulation circuit 2, be connected with gas-liquid separator 4 on the first throttling arrangement 3, gas-liquid separator 4 with main circulation circuit 1 is linked together, promotes the low temperature heating capacity of air conditioner under low temperature environment, satisfies people's daily life demand.
In the heating mode of the novel heat pump air conditioning unit, the gas-liquid two-phase refrigerant part after coming out of the indoor heat exchanger flows back to the gas-liquid separator for heat exchange, so that the suction temperature and suction pressure in the gas-liquid separator are improved, the refrigerant circulation quantity of the unit is improved, and the heating quantity is improved; meanwhile, the oil temperature superheat degree and the air suction superheat degree of the unit in a low-temperature environment can be guaranteed, and safe and reliable operation of the unit is guaranteed.
In this embodiment, the main circulation loop 1 is provided with a compressor 5, the compressor 5 is connected with a four-way valve 6, one end of the four-way valve 6 is connected with an indoor heat exchanger 7, and the indoor heat exchanger 7 is communicated with an air inlet of a heat exchange tube of the gas-liquid separator 4. Therefore, the refrigerant leaving the indoor heat exchanger in the main circulation loop exchanges heat with the refrigerant in the gas-liquid separator, so that when the unit runs under a low-temperature working condition, the refrigerant in the main circulation loop is supercooled in the gas-liquid separator, the heat absorption capacity of the refrigerant in the outdoor heat exchanger is improved, and meanwhile, the refrigerant liquid in the gas-liquid separator absorbs heat and is vaporized, and the liquid-containing refrigerant is prevented from being absorbed by the compressor.
As another embodiment of the present utility model, unlike the above embodiment, in this embodiment, the air outlet of the heat exchange tube of the gas-liquid separator 4 is connected with an outdoor heat exchanger 8, and the air outlet of the outdoor heat exchanger 8 is communicated with the air inlet of the heat exchange tube of the gas-liquid separator 4, so that the heat balance between the indoor heat exchanger and the outdoor heat exchanger is ensured, and the operation of the system under low-temperature working conditions is ensured to have sufficient refrigerant circulation.
As another embodiment of the present utility model, unlike the above-described embodiments, a second throttling device 9 is provided between the indoor heat exchanger 7 and the gas-liquid separator 4 in the present embodiment. Therefore, the evaporation pressure of the unit can be increased, frosting of the unit is slowed down, and the product performance is improved.
As another embodiment of the present utility model, unlike the above-mentioned embodiments, a third throttling device 10 is disposed between the air outlet of the heat exchange tube of the gas-liquid separator 4 and the outdoor heat exchanger 8 in this embodiment. Therefore, the evaporation pressure of the unit can be increased, frosting of the unit is slowed down, and the product performance is improved.
As another embodiment of the present utility model, unlike the above-described embodiments, the first throttle device 3 or the second throttle device 9 or the third throttle device 10 in the present embodiment includes one or more of an electronic expansion valve and a capillary tube. Therefore, the bypass quantity under different environment temperatures can be adjusted to improve the evaporation pressure of the unit, slow down the frosting of the unit and improve the product performance.
As another embodiment of the present utility model, unlike the above embodiment, the heat pump air conditioner set in this embodiment further includes a controller 11, and the controller 11 is electrically connected to the electronic expansion valve. Therefore, intelligent control of the heat pump air conditioning unit is realized.
As another embodiment of the present utility model, unlike the above embodiment, the heat pump air conditioner set in this embodiment further includes an environmental temperature sensing bulb 12 for detecting an environmental temperature, the environmental temperature sensing bulb 12 is electrically connected with the controller 11, so that the heat pump air conditioner set can perform low-temperature heating according to the environmental temperature.
As another embodiment of the present utility model, unlike the above embodiment, the cooling and/or depressurization of the refrigerant in the present embodiment includes controlling the refrigerant in the main circulation loop to enter the indoor heat exchanger to perform condensation and heat release, so as to achieve the heating function of the unit.
As another embodiment of the present utility model, unlike the above-described embodiments, the cooling and/or depressurizing treatment of the refrigerant in the present embodiment includes controlling the refrigerant in the main circulation circuit to be supercooled in the gas-liquid separator. Therefore, the refrigerant leaving the indoor heat exchanger in the main circulation loop exchanges heat with the refrigerant in the gas-liquid separator, so that the refrigerant in the main circulation loop is supercooled in the gas-liquid separator under the low-temperature working condition of the unit, the heat absorption capacity of the refrigerant in the outdoor heat exchanger is improved, and meanwhile, the refrigerant liquid in the gas-liquid separator absorbs heat and is vaporized, and the refrigerant containing liquid is prevented from being absorbed by the compressor.
As another embodiment of the present utility model, unlike the above-described embodiments, the refrigerant-cooling and/or pressure-reducing process in the present embodiment includes controlling the refrigerant of the split-flow circulation circuit to perform a throttling process. Therefore, high-pressure air discharged by the compressor can be throttled to low pressure, and the high-pressure air is mixed with the refrigerant in the main path to exchange heat and enter the gas-liquid separator, so that the heat balance between the indoor heat exchanger and the outdoor heat exchanger is realized, and the sufficient refrigerant circulation quantity in the low-temperature working condition operation of the system is ensured.
When the novel heat pump air conditioning unit operates in a low-temperature heating mode, the high-temperature high-pressure refrigerant gas which is diverted through the four-way valve is divided into a main circulation loop and a diversion circulation loop; the main circulation loop enters the indoor heat exchanger to carry out condensation heat release, and the split circulation loop is connected with the inlet of the vapor-liquid separator and is intersected with the main circulation loop; the refrigerant in the split circulation loop is directly throttled from high-pressure exhaust to low pressure, and enters the gas-liquid separator through mixed heat exchange with the refrigerant in the main loop, so that the heat balance between the indoor heat exchanger and the outdoor heat exchanger is realized, and the sufficient refrigerant circulation quantity in the low-temperature working condition operation of the system is ensured.
After the novel unit increases supercooling, the inlet temperature of the electronic expansion valve is reduced, and the heat absorption capacity in the refrigerant evaporator is increased. As the refrigerant flows along the evaporator tubes, heat is extracted and evaporated into gas, resulting in a reduced liquid content of the refrigerant in the back tube section of the evaporator, even without liquid refrigerant. At this time, if the specific volume of the refrigerant in the pipeline is increased, the heat absorption capacity of the evaporator is greatly reduced, and the energy efficiency ratio of the unit is reduced. Therefore, in order to increase the liquid content in the evaporator tubes and the heating efficiency, a supercooling must be added to the unit.
The evaporator in the novel gas-liquid separator returns the vapor and the contained refrigerant liquid to exchange heat with the refrigerant under the condensing pressure in the supercooling section, and absorbs heat from the refrigerant liquid to evaporate the refrigerant liquid contained in the vapor, so that the vapor suction pressure of the compressor is improved, the specific volume of suction is reduced, and the refrigerant circulation volume of the system is increased.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses within the scope of the subjoined claims.
Claims (8)
1. A heat pump air conditioning unit, characterized in that: the device comprises a main circulation loop, wherein the main circulation loop is provided with a split circulation loop, a first throttling device is arranged on the split circulation loop, a gas-liquid separator is connected to the first throttling device, and the gas-liquid separator is communicated with the main circulation loop.
2. The heat pump air conditioning unit according to claim 1, wherein: the main circulation loop is provided with a compressor, the compressor is connected with a four-way valve, one end of the four-way valve is connected with an indoor heat exchanger, and the indoor heat exchanger is communicated with a heat exchange tube air inlet of the gas-liquid separator.
3. The heat pump air conditioning unit according to claim 1, wherein: an outdoor heat exchanger is connected to the air outlet of the heat exchange tube of the gas-liquid separator, and the air outlet of the outdoor heat exchanger is communicated with the air inlet of the heat exchange tube of the gas-liquid separator.
4. The heat pump air conditioning unit according to claim 2, wherein: and a second throttling device is arranged between the indoor heat exchanger and the gas-liquid separator.
5. A heat pump air conditioning unit according to claim 3, characterized in that: and a third throttling device is arranged between the air outlet of the heat exchange tube of the gas-liquid separator and the outdoor heat exchanger.
6. The heat pump air conditioning unit according to claim 5, wherein: the first throttling device or the second throttling device or the third throttling device comprises one or more of an electronic expansion valve and a capillary tube.
7. The heat pump air conditioning unit according to claim 6, wherein: the electronic expansion valve also comprises a controller, wherein the controller is electrically connected with the electronic expansion valve.
8. The heat pump air conditioning unit according to claim 7, wherein: the temperature sensor also comprises an environment temperature sensing bulb for detecting the environment temperature, and the environment temperature sensing bulb is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222723375.3U CN219300912U (en) | 2022-10-14 | 2022-10-14 | Heat pump air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222723375.3U CN219300912U (en) | 2022-10-14 | 2022-10-14 | Heat pump air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219300912U true CN219300912U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222723375.3U Active CN219300912U (en) | 2022-10-14 | 2022-10-14 | Heat pump air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219300912U (en) |
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2022
- 2022-10-14 CN CN202222723375.3U patent/CN219300912U/en active Active
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